基于改良UCT工艺的精确曝气技术的应用  

Application of Precise Aeration Technology Based on Modified UCT Process

作　　者：楚金喜 付根深 王小玲 高静 赵晓娟 CHU Jinxi;FU Genshen;WANG Xiaoling;GAO Jing;ZHAO Xiaojuan(Central Plains Environmental Protection Co.,Ltd.,Zhengzhou 450000,China)

机构地区：[1]中原环保股份有限公司,河南郑州450000

出　　处：《净水技术》2022年第11期70-75,共6页Water Purification Technology

摘　　要：曝气系统作为城镇污水处理厂主要的耗能单元,是制约城镇污水厂绿色低碳发展的瓶颈,及实现节能降耗的关键。根据北方某采用改良UCT工艺的污水处理厂精确曝气系统应用,结合出水水质同期对比,研究了该系统的溶解氧控制效果以及温度变化对精确曝气的影响;同时进行了系统能耗药耗的评估。结果表明,精确曝气系统的应用可有效控制生物池溶解氧在1.5 mg/L,出水水质得到明显改善;鼓风机在夏季能耗同比降低3.9%,冬季则同比降低10.7%,折合年电费可降低成本0.01元/m^(3),同时药剂成本也降低0.02元/m^(3)。这为今后同工艺、同规模污水厂通过精确曝气的应用改造,实现节能降耗提供了一定的参考。As the main energy-consuming unit of urban wastewater treatment plants(WWTPs),aeration system is the bottleneck restricting the green and low-carbon development of urban WWTPs,and the key to realizing energy saving and consumption reduction.According to the application of the precise aeration system in a WWTP using the modified UCT process in the north,combined with the comparison of the effluent quality over the same period,the dissolved oxygen control effect of the system and the influence of temperature changes on the precise aeration were studied,and the evaluation of system energy consumption and drug consumption was carried out.The results showed that the application of the precise aeration system can effectively control the dissolved oxygen in the biological pool to 1.5 mg/L,and the effluent quality was significantly improved;the energy consumption of the blower in summer was reduced by 3.9%year-on-year,and in winter,it was reduced by 10.7%year-on-year.It could reduce the cost by 0.01 yuan/m^(3),and at the same time,the cost of water agent also reduced by 0.02 yuan/m^(3).This provided a certain reference for the purpose of energysaving and consumption-reducing through the application and transformation of accurate aeration in the same process and the same scale WWTPs in the future.

关 键 词：精确曝气 污水处理厂 溶解氧 出水水质 节能降耗 

分 类 号：X703[环境科学与工程—环境工程]